I went for the last ride of the year (windy and 38*F) and found a few items of significance - the engine still 'rattles', but better, the heater really works well Then, just for some pain, found out that I can't leave the lights on for an hour or so, engine shut down and expect the battery to have any life BUT, I did find that hooking a charger to the starter terminal will boost the battery as long as the master swich isn't off

Oh yeah, that engine? It runs very well - but that low rpm imminent death rattle ....

The engine will come apart over the next few days (weeks?) and one way or another, that rattle WILL go away (probably several $ to many $$$$)